bathometer

American  

[buh-thom-i-ter] / bəˈθɒm ɪ tər /

noun

Oceanography.

1. a device for ascertaining the depth of water.

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bathometer British  

/ ˌbæθəˈmɛtrɪk, bəˈθɒmɪtə, bəˈθɒmɪtrɪ /

noun

1. an instrument for measuring the depth of water

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bathometer Scientific  

/ bə-thŏm′ĭ-tər /

1. An instrument that is used to measure water depth without the use of a sounding line. The bathometer does not require a line to extend to the bottom because it measures the difference in the gravitational effect of the water surface and of solid ground.

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Other Word Forms

• bathometric adjective
• bathometrically adverb
• bathometry noun

Etymology

Origin of bathometer

First recorded in 1870–75; batho- + -meter

Example Sentences

“I would describe ICESat-2 as an accidental bathometer,” Parrish says.

From Science Magazine

Bathometer, bath-om′et-ėr, n. an instrument for ascertaining depth.

From Project Gutenberg

He seems to have invented the first wind pressure gauge, as an aid to seamen, and he improved the bathometer, hygrometer, hydrometer, and barometer, as well as instruments not directly involved in measurement such as the vacuum pump and sea-water sampling devices.

From Project Gutenberg

The bathometer, or attraction-meter, was brought out in 1876, and exhibited at the Loan Exhibition in South Kensington.

From Project Gutenberg

Just as the latter instrument indicates the pressure of the atmosphere above it, so the bathometer was intended to show the pull of the earth below it; and experiment proved, we believe, that for every 1,000 fathoms of sea-water below the ship, the total gravity of the mercury was reduced by 1/3200 part.

From Project Gutenberg